From: Alexey Brodkin <Alexey.Brodkin@synopsys.com>
To: Vineet Gupta <Vineet.Gupta1@synopsys.com>
Cc: "linux-arch@vger.kernel.org" <linux-arch@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-snps-arc@lists.infradead.org"
<linux-snps-arc@lists.infradead.org>
Subject: Do we need to disable preemption in flush_tlb_range()?
Date: Thu, 1 Mar 2018 15:13:10 +0000 [thread overview]
Message-ID: <1519917189.13866.6.camel@synopsys.com> (raw)
Hi Vineet,
Just noticed that in comments for smp_call_function_many() it is said that
preemption must be disabled during its execution. And that function gets executed
among other ways like that:
-------------------------->8-----------------------
flush_tlb_range()
-> on_each_cpu_mask()
-> smp_call_function_many()
-------------------------->8-----------------------
I'm not seeing right now any real problem with current implementation but
some architectures do that thus the question.
-Alexey
next reply other threads:[~2018-03-01 15:13 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-01 15:13 Alexey Brodkin [this message]
2018-03-01 15:13 ` Do we need to disable preemption in flush_tlb_range()? Alexey Brodkin
2018-03-14 19:15 ` Alexey Brodkin
2018-03-14 19:15 ` Alexey Brodkin
2018-03-14 20:19 ` Vineet Gupta
2018-03-14 20:19 ` Vineet Gupta
2018-03-15 8:27 ` Peter Zijlstra
2018-03-15 8:27 ` Peter Zijlstra
2018-03-15 9:39 ` Alexey Brodkin
2018-03-15 9:39 ` Alexey Brodkin
2018-03-15 17:32 ` Vineet Gupta
2018-03-15 17:32 ` Vineet Gupta
2018-03-16 10:11 ` Peter Zijlstra
2018-03-16 10:11 ` Peter Zijlstra
2018-03-16 15:01 ` Alexey Brodkin
2018-03-16 15:01 ` Alexey Brodkin
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